Innerspring Unit Coil Springs for Mattresses
Small-diameter helical wire springs (<5.1 mm cross-section) formed into innerspring units for queen-size mattresses per heading 9404. They offer zoned support for comfort sleeping. Fits HTS 7320.20.50.10 as wire helical springs dedicated to mattress construction.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If unsuitable for mattresses
Same wire size helical springs for motor vehicle suspension go to automotive-specific suffix.
If formed into complete spring assemblies
Screws, bolts, or assembled spring units exceed simple helical spring definition.
If for office furniture use
Mattress-like springs in metal office furniture beds classify under furniture parts.
Not sure which classification is right?
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Import Tips & Compliance
• Provide CAD drawings or specs confirming wire gauge and mattress compatibility for customs clearance
• Bundle with 9404 end-use letters from buyers to support classification and potential duty savings
Related Products under HTS 7320.20.50.10
Wire Helical Mattress Support Springs
These helical springs are made from steel wire with a cross-sectional dimension less than 5.1 mm, specifically designed for use in mattress supports and innerspring mattresses under heading 9404. They provide essential bounce and support in bedding systems. Classified under HTS 7320.20.5010 due to their wire size and mattress-specific application.
Bonnel Type Wire Springs for Box Springs
Hourglass-shaped Bonnel helical springs from wire under 5.1 mm diameter, used in box spring mattress foundations of heading 9404. They deliver firm foundational support beneath foam layers. HTS 7320.20.50.10 applies for their precise mattress support role.
Pocketed Coil Encased Mattress Springs
Individually fabric-encased helical wire springs (<5.1 mm cross-section) for independent pocketed mattress coils in 9404 products. They minimize motion transfer for couples. Classified in HTS 7320.20.50.10 despite encasement, as core spring remains qualifying wire helical type.
Continuous Wire Formed Mattress Edge Springs
Helical edge support springs machine-formed from continuous steel wire under 5.1 mm, reinforcing mattress perimeter in 9404 beds. They prevent sagging at borders. Meets HTS 7320.20.50.10 for wire helical springs tailored to mattress supports.
Zoned Support Helical Springs for Orthopedic Mattresses
Variable pitch helical wire springs (<5.1 mm diameter) zoned for lumbar/firmness support in therapeutic 9404 mattresses. They conform to body pressure points. HTS 7320.20.50.10 covers these specialized mattress wire springs.
Mini-Coil Micro Springs for Foam Hybrid Mattresses
Ultra-fine helical micro-springs from wire <5.1 mm integrated into hybrid foam mattresses of heading 9404 for added resilience. They enhance foam durability without bulk. Fits HTS 7320.20.50.10 as qualifying wire helical mattress components.